Signer.md

@cere-ddc-sdk/ddc / Signer

Class: Signer

This abstract class provides a blueprint for creating different types of signers.

Example

class MySigner extends Signer {
  // Implement abstract properties and methods...
}

const mySigner = new MySigner();
const isReady = await mySigner.isReady();
console.log(isReady);

Hierarchy

• Signer

  ↳ KeyringSigner

Methods

isReady

▸ isReady(): Promise<boolean>

Checks if the signer is ready.

Returns

Promise<boolean>

A promise that resolves to a boolean indicating whether the signer is ready.

---

sign

▸ sign(data): Promise<Uint8Array>

Signs data with the signer.

Parameters

Name	Type	Description
data	string | Uint8Array	The data to sign.

Returns

Promise<Uint8Array>

A promise that resolves to the signature.

---

unlock

▸ unlock(passphrase?): Promise<void>

Unlocks the signer with a passphrase.

Parameters

Name	Type	Description
passphrase?	string	The passphrase to unlock the signer.

Returns

Promise<void>

---

isSigner

▸ isSigner(signer): signer is Signer

Checks if an object is a signer.

Parameters

Name	Type	Description
signer	unknown	The object to check.

Returns

signer is Signer

A boolean indicating whether the object is a signer.

Properties

address

• Readonly Abstract address: string

The address of the signer.

---

isLocked

• Readonly Abstract isLocked: boolean

A boolean indicating whether the signer is locked.

---

publicKey

• Readonly Abstract publicKey: Uint8Array

The public key of the signer.

---

type

• Readonly Abstract type: KeypairType

The type of the signer ('ed25519' or 'sr25519').